Tech titans Mark Zuckerberg and Sean Parker had a huge public bust-up outside a Hollywood nightclub over Facebook’s role in new music venture Spotify.

Billionaire Facebook creator Zuckerberg and Napster co-founder Parker, who has launched music streaming service Spotify, got into a boozy fight over the new venture at West Hollywood club The Beverly earlier this month.

Sources tell us the pair, whose complicated relationship was highlighted in “The Social Network,” got into an alcohol-fueled argument over Facebook’s partnership deal with Spotify.

One source told us, “Sean and Mark had done the big Spotify launch and headed to The Beverly to party. They spent a lot of money on alcohol, and as the night went on they got into an intense discussion, which turned into a loud argument as they left.”

According to the witness, “Sean argued that all Spotify users should not be forced to sign up for a Facebook account, but Mark wouldn’t budge. It was a full on screaming match outside the club, but stopped short at coming to blows. They then stormed off in different directions.” The partnership has boosted Spotify subscribers but irked some who don’t want their music choices broadcast on Facebook.

Another source said, “Sean gets very intense and can be loud. These guys have been through a lot together. They have passionate discussions and strong opinions. Their partnership has given Spotify a lot of subscribers.”

Parker threw a party for Spotify at last month’s F8 conference in San Francisco that Zuckerberg attended. Then, a few weeks ago, the pair hit The Beverly. Parker left a $5,000 tip before they started arguing.

A rep for Parker told us, “Most stories have a grain of truth. There were together at The Beverly, they did discuss Spotify and Facebook, but they did not have an argument. They have spoken several times since. Sean is looking forward to seeing Mark at a wedding this weekend.” A Facebook rep didn’t get back to us.